Datasheet

Data Sheet AD5522
Rev. E | Page 9 of 64
Parameter Min Typ
1
Max Unit Test Conditions/Comments
GUARDx PIN
Output Voltage Span 22.5 V
Output Offset −10 +10 mV
Short-Circuit Current −15 +15 mA
Maximum Load Capacitance
2
100 nF
Output Impedance 85 Ω
Tristate Leakage Current
2
−30 +30 nA When guard amplifier is disabled
Slew Rate
2
5 V/μs C
LOAD
= 10 pF
Alarm Activation Time
2
200 μs Alarm delayed to eliminate false alarms
FORCE AMPLIFIER
2
Slew Rate 0.4 V/μs CCOMPx = 100 pF, CFFx = 220 pF, C
LOAD
= 200 pF
Gain Bandwidth 1.3 MHz CCOMPx = 100 pF, CFFx = 220 pF, C
LOAD
= 200 pF
Max Stable Load Capacitance 10,000 pF
CCOMPx = 100 pF, larger C
LOAD
requires larger CCOMP
capacitor
100 nF
CCOMPx = 1 nF, larger C
LOAD
requires larger CCOMP
capacitor
FV SETTLING TIME TO 0.05% OF FS
2
Midscale to full-scale change; measured from
SYNC
rising edge, clamps on
±80 mA Range
22
40
µs
CCOMPx = 100 pF, CFFx = 220 pF, C
LOAD
= 200 pF
±2 mA Range
24
40
µs
CCOMPx = 100 pF, CFFx = 220 pF, C
LOAD
= 200 pF
±200 µA Range
40
80
µs
CCOMPx = 100 pF, CFFx = 220 pF, C
LOAD
= 200 pF
±20 µA Range 300 µs CCOMPx = 100 pF, CFFx = 220 pF, C
LOAD
= 200 pF
±5 µA Range 1400 µs CCOMPx = 100 pF, CFFx = 220 pF, C
LOAD
= 200 pF
MI SETTLING TIME TO 0.05% OF FS
2
Midscale to full-scale change; driven from force
amplifier in FV mode, so includes FV settling time;
measured from
SYNC
rising edge, clamps on
±80 mA Range 22 40 µs CCOMPx = 100 pF, CFFx = 220 pF, C
LOAD
= 200 pF
±2 mA Range 24 40 µs CCOMPx = 100 pF, CFFx = 220 pF, C
LOAD
= 200 pF
±200 µA Range
60
100
µs
CCOMPx = 100 pF, CFFx = 220 pF, C
LOAD
= 200 pF
±20 µA Range
462
µs
CCOMPx = 100 pF, CFFx = 220 pF, C
LOAD
= 200 pF
±5 µA Range
1902
µs
CCOMPx = 100 pF, CFFx = 220 pF, C
LOAD
= 200 pF
FI SETTLING TIME TO 0.05% OF FS
2
Midscale to full-scale change; measured from
SYNC
rising edge, clamps on
±80 mA Range 24 55 µs CCOMPx = 100 pF, C
LOAD
= 200 pF
±2 mA Range 24 60 µs CCOMPx = 100 pF, C
LOAD
= 200 pF
±200 µA Range 50 120 µs CCOMPx = 100 pF, C
LOAD
= 200 pF
±20 µA Range 450 µs CCOMPx = 100 pF, C
LOAD
= 200 pF
±5 µA Range
2700
µs
CCOMPx = 100 pF, C
LOAD
= 200 pF
MV SETTLING TIME TO 0.05% OF FS
2
Midscale to full-scale change; driven from force
amplifier in FV mode, so includes FV settling time;
measured from
SYNC
rising edge, clamps on
±80 mA Range 24 55 µs CCOMPx = 100 pF, C
LOAD
= 200 pF
±2 mA Range 24 60 µs CCOMPx = 100 pF, C
LOAD
= 200 pF
±200 µA Range 50 120 µs CCOMPx = 100 pF, C
LOAD
= 200 pF
±20 µA Range 450 µs CCOMPx = 100 pF, C
LOAD
= 200 pF
±5 µA Range 2700 µs CCOMPx = 100 pF, C
LOAD
= 200 pF
DAC SPECIFICATIONS
Resolution 16 Bits
Output Voltage Span
2
22.5 V VREF = 5 V, within a range of −16.25 V to +22.5 V
Differential Nonlinearity
2
−1 +1 LSB Guaranteed monotonic by design over temperature
COMPARATOR DAC DYNAMIC
SPECIFICATIONS
2
Output Voltage Settling Time 1 µs 500 mV change to ±½ LSB
Slew Rate 5.5 V/µs
Digital-to-Analog Glitch Energy 20 nV-sec
Glitch Impulse Peak Amplitude 10 mV
REFERENCE INPUT
VREF DC Input Impedance 1 100 MΩ
VREF Input Current −10 +0.03 +10 µA
VREF Range
2
2 5 V